The Tsushima-jidori are a native breed of chickens in Tsushima City, Nagasaki Prefecture, and have long been kept as egg-laying hens in garden poultry farms. In order to improve the egg-laying ability of Tsushimajidori, they were crossed with red eggshell laying hens, which have higher eg g-laying ability, and the egg-laying characteristics of the crossed hens were investigated. The crossbred chickens were found to have higher egglaying ability than the Tsushima-jidori, a more elongated egg shape compared to the red eggshell laying hens, and an eggshell color of pink to almost reddish-brown. The general egg composition showed inherited characteristics of both Tsushima-jidori and red eggshell hens. The large yolk ratio is a characteristic of Tsushimajidori hens, and hens resulting from crossbreeding with Tsushima-jidori hens inherited the same characteristics. Further, eggshell thickness and strength, and Haugh unit were improved by crossbreeding with red eggshell hens. These results suggest that crossbred Tsushima-jidori hens can inherit characteristics of the original Tsushimajidori hens while exhibiting high egg-laying ability and producing distinctive eggs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.